Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.
MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping

if sum of two unit vector is a unit vector then magnitude of their difference is

if sum of two unit vector is a unit vector then magnitude of their difference  is

Grade:11

1 Answers

Priyanshu Gujjar
101 Points
one month ago

 

Let a,b be two unit vectors whose sum is also a unit vector c
 
a+b=c ...... (i) and a=b=c=1
 
Now, magnitude of sum of a and b is 
 
a+b=a2+b2+2(ab) 
 
1=1+1+2(ab) ..... From (i)
 
ab=21
 
Magnitude of their difference is given by
 
ab2=a2+b22a.b
 
              =1+1+2×21=3
 
ab=

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

ASK QUESTION

Get your questions answered by the expert for free